Currently,　the　characteristics　of　volatile　organic　compounds　(VOC)　released　from　coking　industry　are　still　vague,　and　the　widely　used　VOC　emission　factors　(EFs)　were　still　from　the　measurements　of　1990s.　Hence,　focusing　on　coking　industry,　we　conducted　an　in-situ　measurement　campaign　in　several　typical　plants,　developed　a　set　of　VOC　EFs　for　various　release　units,　and　estimated　the　current　emission　amounts　and　future　reduction　potentials　of　VOC　in　China.　The　measurements　show　that　the　levels　of　VOC　in　stationary　units　were　63.82-9563.93　mu　g-m(-3),　and　those　surrounding　fugitive　units　were　111.37-1436.36　mu　g-m(-3).　VOCemissions　fromstationary　units　were　directly　calculated,　which　deducing　EFs　of　11.57,　15.51,　127.13,　0.28,　0.16　g-t(-1)　coke　respectively　for　coke　charging,　coke　pushing,　coke　oven　chimney,　dry　quenching,　and　wastewater　treatment　processes.　Meanwhile,　VOC　emissions　from　fugitive　units　were　simulated　following　the　inverse　dispersion　method,　which　achieving　EFs　of　443.34　+/-　66.31,　352.12　+/-　65.81,　and　718.56　+/-　132.69　g-t(-1)　coke　respectively　for　the　coke　oven　leakage,　byproduct　recovery　with　VOC　treatment　system,　and　byproduct　recovery　without　VOC　treatment　system.　Generally,　the　coking　plants　installing　VOC　treatment　system　had　total　VOC　EF　of　953.76　g-t(-1)　coke,　about　37.1%　lower　than　those　never　considering　VOC　treatment　(1516.25　g-t(-1)　coke).　According　to　these　developed　EFs,　the　VOC　emission　amount　from　coking　industry　in　China　were　estimated,　slightly　decreasing　from　623.54　to　578.17　Gg　per　year,　although　the　coke　production　increasing　from　410.86　to　418.26　Tg　during　2015-2019.　In　future,　according　to　the　national　industrial　policies,　regulations　and　standards,　technical　guidelines,　the　VOC　reduction　potential　of　this　industry　in　China　could　reach　336.9　Gg,　to　which　headstream　adjustment,　process　improvement,　and　end-of-pipe　control　contributed　about　21.4%,　31.6%,　and　47.0%,　respectively.